simple TH350 question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ed70 · 03-30-2009, 01:55 AM

about how many quarts does it take to fill the tranny and torque converter?
i only need to know cause i am swapping a trans tomorrow on a limited budget... so where theres a penny to pinch trust me its getting pinched... ne other helpful advice would be helpful... just a lil info... truck is 350/700r4... im going to a th350... i know the crossmember should not be a issue and im getting the torque converter with it so it is not an issue either... just fluid level... i don think linkage should be either cause the kid before me installed a ratchet shifter in that is for a 3spd so i could go no lower than 2nd w/the 700r4... so ajusting will be relatively easy i believe... this isn't my first trans change but thought i could use some helpful insight so things go a bit smoother than a few of my previous occurrences...lol thanks...

spinning wheels · 03-30-2009, 02:12 AM

This question came up a few days ago.

If the trans is bone dry, including a bone dry converter. You will need approximately 10 to 12 1/2 quarts.
Look up the topic in the google search. Longhorn gave a good description, on how to fill and test the trans. to make sure you don't overfill the trans.

Good luck.

ed70 · 03-30-2009, 08:21 AM

thank you...ummm can you give a good keyword to use cause all i can get to come up is trans comparisons and linkage problems.

spinning wheels · 03-30-2009, 02:48 PM

Quote:

Originally Posted by ed70

thank you...ummm can you give a good keyword to use cause all i can get to come up is trans comparisons and linkage problems.

The thread is called. Transmission fluid levels.

I can bump it up for you.

Longhorn Man · 03-30-2009, 03:18 PM

is this a 700r4, or a TH350? You say the truck is a 700R4 but you are asking for Th350 specs?
Are you installing a Th350 where a 700 was?
And your comment on the VIN tellin you it had a powerglide.... not possible. You can't even tell what engine was there by the VIN.

ed70 · 03-31-2009, 04:10 PM

that was what i was told that the truck had original but im at the point where i don't believe anything the previous owner says lol... but yes i am taking out the blown 700r4 and putting in a th350 for temp till i can afford to get the 700r4 rebuilt cause i like the overdrive... i got a rebuilt th350 with less than 5000 miles on it for 150 bucks... but its been sitting for a while though... pulled my old one yesterday and got the th350 put in got everything done except the torque converter bolts to the flywheel and the torque converter in smashed against it so the engine wont spin the flywheel w/o spinning the torque converter as well... making it impossible to line up the the tc bolts... so is the fly wheel wrong or did i not get the tc all the way on the shaft? o and thought i would thow it out there that i hate these cross members...

Longhorn Man · 03-31-2009, 05:10 PM

You need to pull the tranny off the engine and spin the converter as you push it in the tranny. You may have already killed the pump. Probably not, but you may have.
10 - 12 quarts is true if the tranny and converter are both dry. If the converter is used, then it isn't dry at all. Then its only a few quarts.
If you are not sure if the converter was filled or not, then only dump 2 quarts into the fill tube, then fire the engine up, go through the gears, and check the fluid level running on level ground in park. Add more from there if needed.
When it gets above the add, stop. You DON'T want it full when cold. Drive it at that point a couple few miles, then check it and see where it is.
The 700 install may have been wrong, talk to the person rebuilding it and ask him why it went bad, let him look your truck over if he asks. This is a very sensitive tranny that'll die in 10,000 miles if not done right.

**VetteVet** · 03-31-2009, 05:42 PM

Here's a few pointers for you as well.
http://www.oldengine.org/unfaq/leadfoot/th350in.htm

ed70 · 03-31-2009, 07:17 PM

yeah im planning on pulling it back off going to no matter what is wrong but i do believe that is is the issue that the tc wasnt all the way on...

hopefully nothing was hurt... the 700 was installed wrong dont they have the lockout tc ? i know it had a plug on the trans that ran no where... all i know is that the tc and trans i think are screwed on the 700 cause the tranny fluid went from red to metallic black in like two weeks and smells really really strongly burnt... i will however be taking you advice on fluid levels longhorn... i know the converter had fluid in it when i put it on i added some to it as well... and the trans has fresh fluid in it but when im done ill make sure its at the right level before i go out driving in it... iv always heard that the 700 is a touchy trans but isnt there a device i am able to hook up to the plug so i wont need the comp after i get it rebuilt and ready to go back in... just for future refrence... this really all depends on how i like the th350 in it if i can everything in order... does any one know if the flywheel is diffrent between a th350 and a 700r4? i believe the 700r4 is internally balanced and the th350 isnt so there would be a diffrence? not sure though not a expert but no means... im a novice at best when it comes to trans work... but thanks for the helpful insight... helps more tan you guys know.

03-30-2009, 01:55 AM	#1
ed70 is very serious Join Date: Mar 2009 Location: moscow mills MO Posts: 154	simple TH350 question about how many quarts does it take to fill the tranny and torque converter? i only need to know cause i am swapping a trans tomorrow on a limited budget... so where theres a penny to pinch trust me its getting pinched... ne other helpful advice would be helpful... just a lil info... truck is 350/700r4... im going to a th350... i know the crossmember should not be a issue and im getting the torque converter with it so it is not an issue either... just fluid level... i don think linkage should be either cause the kid before me installed a ratchet shifter in that is for a 3spd so i could go no lower than 2nd w/the 700r4... so ajusting will be relatively easy i believe... this isn't my first trans change but thought i could use some helpful insight so things go a bit smoother than a few of my previous occurrences...lol thanks... __________________ 1967 C-10 2wd fleetside LB 350 4spd (dads) - sold 1970 C-10 2wd fleetside LB 307 700r4 - sold 1969 C-10 2wd fleetside LB 327 3spd - sold 1969 C-10 2wd fleetside LB 350 th350 - sold 1967 C-10 2wd fleetside LB 250 th400 -project in progress Chevrolet=one who is dignified enough to expect every occasion is a special one and sees it fit to wear a bow tie... may others come under dressed. Last edited by ed70; 03-31-2009 at 04:13 PM.

03-30-2009, 02:12 AM	#2
spinning wheels Registered User Join Date: Sep 2001 Location: Hacienda Heights, California USA Posts: 474	Re: simple TH350 question This question came up a few days ago. If the trans is bone dry, including a bone dry converter. You will need approximately 10 to 12 1/2 quarts. Look up the topic in the google search. Longhorn gave a good description, on how to fill and test the trans. to make sure you don't overfill the trans. Good luck. __________________ '72 GMC custom camper 350/350

03-30-2009, 08:21 AM	#3
ed70 is very serious Join Date: Mar 2009 Location: moscow mills MO Posts: 154	Re: simple TH350 question thank you...ummm can you give a good keyword to use cause all i can get to come up is trans comparisons and linkage problems. __________________ 1967 C-10 2wd fleetside LB 350 4spd (dads) - sold 1970 C-10 2wd fleetside LB 307 700r4 - sold 1969 C-10 2wd fleetside LB 327 3spd - sold 1969 C-10 2wd fleetside LB 350 th350 - sold 1967 C-10 2wd fleetside LB 250 th400 -project in progress Chevrolet=one who is dignified enough to expect every occasion is a special one and sees it fit to wear a bow tie... may others come under dressed.

03-30-2009, 03:18 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: simple TH350 question is this a 700r4, or a TH350? You say the truck is a 700R4 but you are asking for Th350 specs? Are you installing a Th350 where a 700 was? And your comment on the VIN tellin you it had a powerglide.... not possible. You can't even tell what engine was there by the VIN.

03-31-2009, 04:10 PM	#6
ed70 is very serious Join Date: Mar 2009 Location: moscow mills MO Posts: 154	Re: simple TH350 question that was what i was told that the truck had original but im at the point where i don't believe anything the previous owner says lol... but yes i am taking out the blown 700r4 and putting in a th350 for temp till i can afford to get the 700r4 rebuilt cause i like the overdrive... i got a rebuilt th350 with less than 5000 miles on it for 150 bucks... but its been sitting for a while though... pulled my old one yesterday and got the th350 put in got everything done except the torque converter bolts to the flywheel and the torque converter in smashed against it so the engine wont spin the flywheel w/o spinning the torque converter as well... making it impossible to line up the the tc bolts... so is the fly wheel wrong or did i not get the tc all the way on the shaft? o and thought i would thow it out there that i hate these cross members... __________________ 1967 C-10 2wd fleetside LB 350 4spd (dads) - sold 1970 C-10 2wd fleetside LB 307 700r4 - sold 1969 C-10 2wd fleetside LB 327 3spd - sold 1969 C-10 2wd fleetside LB 350 th350 - sold 1967 C-10 2wd fleetside LB 250 th400 -project in progress Chevrolet=one who is dignified enough to expect every occasion is a special one and sees it fit to wear a bow tie... may others come under dressed.

03-31-2009, 05:10 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: simple TH350 question You need to pull the tranny off the engine and spin the converter as you push it in the tranny. You may have already killed the pump. Probably not, but you may have. 10 - 12 quarts is true if the tranny and converter are both dry. If the converter is used, then it isn't dry at all. Then its only a few quarts. If you are not sure if the converter was filled or not, then only dump 2 quarts into the fill tube, then fire the engine up, go through the gears, and check the fluid level running on level ground in park. Add more from there if needed. When it gets above the add, stop. You DON'T want it full when cold. Drive it at that point a couple few miles, then check it and see where it is. The 700 install may have been wrong, talk to the person rebuilding it and ask him why it went bad, let him look your truck over if he asks. This is a very sensitive tranny that'll die in 10,000 miles if not done right.

03-31-2009, 05:42 PM	#8
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,709	Re: simple TH350 question Here's a few pointers for you as well. http://www.oldengine.org/unfaq/leadfoot/th350in.htm __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

03-31-2009, 07:17 PM	#9
ed70 is very serious Join Date: Mar 2009 Location: moscow mills MO Posts: 154	Re: simple TH350 question yeah im planning on pulling it back off going to no matter what is wrong but i do believe that is is the issue that the tc wasnt all the way on... hopefully nothing was hurt... the 700 was installed wrong dont they have the lockout tc ? i know it had a plug on the trans that ran no where... all i know is that the tc and trans i think are screwed on the 700 cause the tranny fluid went from red to metallic black in like two weeks and smells really really strongly burnt... i will however be taking you advice on fluid levels longhorn... i know the converter had fluid in it when i put it on i added some to it as well... and the trans has fresh fluid in it but when im done ill make sure its at the right level before i go out driving in it... iv always heard that the 700 is a touchy trans but isnt there a device i am able to hook up to the plug so i wont need the comp after i get it rebuilt and ready to go back in... just for future refrence... this really all depends on how i like the th350 in it if i can everything in order... does any one know if the flywheel is diffrent between a th350 and a 700r4? i believe the 700r4 is internally balanced and the th350 isnt so there would be a diffrence? not sure though not a expert but no means... im a novice at best when it comes to trans work... but thanks for the helpful insight... helps more tan you guys know. __________________ 1967 C-10 2wd fleetside LB 350 4spd (dads) - sold 1970 C-10 2wd fleetside LB 307 700r4 - sold 1969 C-10 2wd fleetside LB 327 3spd - sold 1969 C-10 2wd fleetside LB 350 th350 - sold 1967 C-10 2wd fleetside LB 250 th400 -project in progress Chevrolet=one who is dignified enough to expect every occasion is a special one and sees it fit to wear a bow tie... may others come under dressed.

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